diff --git a/lib/extensions.sh b/lib/extensions.sh
index fbf50942c3..3f18b74df9 100644
--- a/lib/extensions.sh
+++ b/lib/extensions.sh
@@ -326,7 +326,7 @@ enable_extension() {
 		stacktrace="${ENABLE_EXTENSION_TRACE_HINT}$(get_extension_hook_stracktrace "${BASH_SOURCE[*]}" "${BASH_LINENO[*]}")"
 		display_alert "Enabling extension" "${extension_name} :: added by ${stacktrace}" "debug"
 	else
-		display_alert "Enabling extension" "${extension_name}" ""
+		[[ "${enable_extension_quiet:-no}" != "yes" ]] && display_alert "Enabling extension" "${extension_name}" ""
 	fi
 
 	# first a check, has the extension manager already initialized? then it is too late to enable_extension(). bail.
@@ -402,6 +402,36 @@ enable_extension() {
 
 }
 
+# This looks up and enables _all_ existing extensions.
+# The reasoning is simple: during Dockerfile build, we wanna have all the hostdeps defined, even if we're not gonna use them.
+function enable_all_extensions_builtin_and_user() {
+	declare -a extension_list=()
+	declare -a ext_dirs=("${SRC}/extensions" "${SRC}/userpatches/extensions")
+	declare -a ignore_extensions=("sample-extension")
+
+	# Extensions are files of the format <dir>/extension_name.sh or <dir>/extension_name/extension_name.sh
+	for ext_dir in "${ext_dirs[@]}"; do
+		if [[ -d "${ext_dir}" ]]; then
+			declare -a ext_list_dir=()
+			mapfile -t ext_list_dir < <(find "${ext_dir}" -maxdepth 2 -type f -name "*.sh")
+			extension_list+=("${ext_list_dir[@]}")
+		fi
+	done
+
+	# loop over the files found; remove the prefix
+	for extension_file in "${extension_list[@]}"; do
+		extension_file="${extension_file#${SRC}/}"
+		extension_file="${extension_file%.sh}"
+		extension_name="${extension_file##*/}"
+		# skip, if extension_name is in the ignore_extensions array
+		if [[ " ${ignore_extensions[*]} " == *" ${extension_name} "* ]]; then
+			continue
+		fi
+		# enable the extensions, quietly.
+		enable_extension_quiet="yes" enable_extension "${extension_name}"
+	done
+}
+
 # Fancy placeholder for future ideas. allow any core function to be hooked. maybe with "voters" infrastructure?
 function do_with_hooks() {
 	"$@"
diff --git a/lib/functions/host/docker.sh b/lib/functions/host/docker.sh
index aada2615e4..c675e47017 100755
--- a/lib/functions/host/docker.sh
+++ b/lib/functions/host/docker.sh
@@ -109,6 +109,7 @@ function docker_cli_prepare() {
 	#############################################################################################################
 	# Prepare some dependencies; these will be used on the Dockerfile
 
+	enable_all_extensions_builtin_and_user
 	initialize_extension_manager  # initialize the extension manager.
 	declare -a -g host_dependencies=()
 	early_prepare_host_dependencies
@@ -209,6 +210,8 @@ function docker_cli_prepare() {
 		RUN echo "--> CACHE MISS IN DOCKERFILE: apt packages." && \
 			DEBIAN_FRONTEND=noninteractive apt-get -y update && \
 			DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends ${BASIC_DEPS[@]} ${host_dependencies[@]}
+		RUN sed -i 's/# en_US.UTF-8/en_US.UTF-8/' /etc/locale.gen
+		RUN locale-gen
 		WORKDIR ${DOCKER_ARMBIAN_TARGET_PATH}
 		ENV ARMBIAN_RUNNING_IN_CONTAINER=yes
 		ADD . ${DOCKER_ARMBIAN_TARGET_PATH}/